Car-underframe



D. S. BAHROWS.

CAR UNDERFRAME.

APPLICATION man MAY 31. 191s.

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AUNITED sm'rss PATENT OFFICE.

DONALD S. BARROXVS, OF ROCHESTER, NEW YORK.

CAB-UNDERFRAME.

To all whom 'it may concern:

Be it known that I, DoNALD S. Bannon/s, a citizen of the United States,esiding at Rochester, in the county of Monroe and State of` 4New York,have invented certain new and useful Improvements in Car- Underframes;and I do hereby declare the following to be a full, clear, and eXactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

rlheinvention relates to car underfraines, and more particularly tomeans connected to the wooden center sill for replacing the old woodendraft sills or timbers, the said means being adapted to strengthen thewooden underframe and to afford a strong, efficient and reliablesupport, container or housing for the draft rigging parts.

The principal obj ect of my invention, generally stated, is to provide adraft arm in which the load transmitted to the lower portion thereof bythe draft rigging is carried to the car center sill at a point where thesill is strengthened and reinforced, the load transmitting Vportion ofthe draft arm being so constructed and arranged as 'to prevent thedanger of buckling of this portion of the draft arm. To this end themain feature of my invention broadly considered consists in providing ametallic draft arm connected to the upright face of the center sill andeX- 4tending under the end sill and over and to the rear of the bodybolster, a portion of the draft arm between the` end sill and bolsterdepending below the lower face of the center sill to provide a housingor container in conjunction with a corresponding part Vof the adjacentdraft arm, for the draft rigging parts, and means for reinforcing thelower edge of the said draft arms, saidr means eX- tending from over thebolster to a point on the said eepending portion.

There are other features of the invention as will appear from the moredetailed det scription of the same when taken in connece tion with theaccompanying drawings, in which:

Figure l is a longitudinal central vertical section of a car underframeshowing the invention applied thereto, sonic of the draft rigging partsbeing shown in side elevation for the sake of clearness.

Fig. 2 is a view partially in plan and par- Speciicaton of LettersPatent.

Patented Nov. 9, 1920.

Application led May 31, 1918. Serial No. /Z".;7,4`86.

tially in horizontal. longitudinal section on line 2-2 of F ig. l.

' Fig. 3 is a side elevation of the draft arm. Fig. 4f is a sectiontaken on line 4 4 of Fig. 2.

5 is a section taken on the linel 55 of 2, and

6 is a section taken on the line 6-'-6 of Fig. i. Throughout thespecification and drawings lilre parts are designated by like referencecharacters.

rihe numerals l, l designatel the center sills of a car Yunderfrarne, 2the end sill, 3 the striking block, and il the striking casting which isconnected to theV outer face of the block 3, and 5L atie memberconnecting the lower faces of the center sills l adjacent the bodybolster 5. To the inner or adjacent faces Vof the center sills l areconnected,`

preferably by means of the bolts 6, the draft arms 7. Each draft arm 7comprises a plate-like member which is adapted to overiie the adjacentface of the center sill l and which entends Aalong the upright face ofthe said sill from end sill to and in rear of the body bolster.Intermediate the end sill and bolster the draft arm is providedwith adepending portion 7a, which portion is 'preferably offset from thevertical plane of the upper portion of the'draft arm, as shown at 9 and10. In old wooden car construction the spacing of the center sills wasmaterially less than Vthe requirement of the Master Car Builders7VAssociation for steel underframes, which requirement is twelve andseveneighths inches from inside face to inside face of the draft arm orcenter sills of a steel underframe car, and by offsetting the draft armsas described above, the vertical faces of the depending` portions of thedraft arms are spaced to agree with the requirements of the Master CarBuilders Association. These depending portions of the draft arms afforda draft rigging housing or container suitable for the reception of themodern type of draft rigging. Y

VFor convenience, the invention has been illustrated in connection witha well known type of draft rigging which comprises a drawbar ll, a frontfollower 12,-a rear fol'- iower 13, spr/ings lilinterposed between thefront and rear followers, the drawbar andmeans ofthe horizontallydisposed connect-v ing means or links 15. Passing through the drawbar,the' front follower and 'the rear follower, respectively, are the`transversely disposed keys 16, 17 and'18. rlhese keys, as is wellunderstood and as will be clearly seen from the disclosure of Fig. 2,passl through slots inthe links andthrough elongated slots 19, and 21 inthe depending portions of the draft varms' 7, thefro'nt key 16 being.located midwayof its receivingslot. The key 17 normally occupies aposition in the forward end ofthe draft arm i slot, and theV key 18normally occupying a action of the keys.

position at the rear of the draft arm'slot, so that on forward movementof the "draw bar the front key 16 will be moved outwardly and carry withit the links 15, the rear key 1S and the rear follower 13, the

front follower 12 being held stationary by the key 17. n l

To the outer faces of the depending portions ofthe draft arms areconnected the cheek-plates V22, Each of these plates is provided with aplurality of slots to correspond withthe before-mentioned slots in thedraft arms,and each may be provided with inwardly extending bossesadapted to line 1 venience.V

To strengthen the depending portion 72L of the draft arms 7 thereispreferably provided'on the outer face of each draft arm Y adjacent thelower face Vof the center sill an angle bar reinforcing means 23, oneflange, 24, of which is adapted to contactrand be secured to the outerface of the dra-ft'arm and the other` flange, 25, being adapted to abutand besecured to the center sill. the form of draft rigging illustrated,,the

flange 24; is interposed between the cheek-V v plate and the adjacentdraft arm, and the se- Vcuring means are adapted to pass through thecheek-plates 22,' theilanges 24 and the' i V.draft arms 7,

To counteract the bending tendency of the upper portion of the draftarms, each draft Varm is provided adgacent its vupper edge withreinforcing means 26 which may be and preferably is in the form of anangle bar 27. This angle bar preferably overlies and extends on oppositesides `of the body bolster 5, and as the angle bar is firmly riveted tothe adjacent face vof the associated draft arm it may bev considered forall purposes as a partthereof, and it therefore changes the draft `armat v this point from a fiat plate to an angle bar havn ing a longvertical or upright flange and a short horizontal flange.

,7" of thedraft arm to a point in alinement T ill lWith draft armsof theold type great diiliculty has been experienced owing to the liability ofthe draft arm bucklingbetween the rearfollower and the bolster, due' tovheavy bulfing stresses. ln my device l obviate this danger by providinga reinforcing means 28 which extends along the lower edge of each draftarm from 'a point in front ofthe rear follower 13 to a ypoint in rearfof the bolster 5. This reinforcing means may be and preferably is inthe form of'an angle bar. To prevent vthe interference of thereinforcing means 28 with the moving parts of the draft rigging, lprefer- .al-olvV construct the reinforcing mean'sin a 80 plurality ofparts 29 :and 30, theV portion 29 comprising an langle bar which isconnected to the outer faceV of the depending portion?? of eachV draftarm adjacent the lower Vedge thereof, the said angle bar 29 85 extendingVrearwardly along the lower edge of the depending portion to a point inrear of the rear follower 13 and may and preferably does entendV alongthe inclined portion with the'lower portion of thecenter sills.V rlheportion 30 ofthe reinforcing means 28 is Yalso preferably formed as Vanangle bar and is connected to the inner face-of each draft arm soas toavoid interference with the center sills. This angle'bar 30 isconnectedto the lower edge of the rearwardly extending portion of the'draft 'arms7, and

V'preferably extends Vforwardly of the bolster 5 to Vand along theinclined portion 7b of 10.0

ach draft arm so as to overlap the upwardly extendingV portion of the'adjacent Vangle bar 29. rlhe adjacent ends, of each pair ofanglebarsQQand V30 are connected tothe intervening portion of the'draftarm 105 Y by means ofthe rivets V31. `By this construction the inclinedportions 7b of the draft arms are greatly strengthened and reinforced'against all possible danger of buckling, theV angle bars riveted to theop- 110V posite sides'of the draft plate forming with each draft plate abuilt-up beam of substan-y tially T-'sectiou This construction Y alsotransmits the bufhng loads to the car center sills at points where thelatter'are best able 115 to withstand these excessive strains. Havingnow fullyv described my invention, although it, is to'be understood thatthe termsV employed are to be taken in their f descriptive and notin`their limiting sense,

what I Vclaim is z, Y

1. In a car underframe, the combination with wooden center sills, ofmetallic draft plates connected thereto, each of which is provided with'a depending lportionlsaid125 portions extending below the `lower Vfacesof the said sills and below the lower edges of the rearwardly extendingportions of the draft plates, said depending portions being outwardlyflared to'provide a draft rigging 130 the upright faces of the saidsills, saidV plates being substantially equal in width to the saidcenter sills between the said bolsters and each being provided with adepending portion intermediate lthe bolster and end sill the inner endsof the said depending portions sloping upwardly adjacent the saidbolsters, and means for reinforcing the lower edges of the said platesadjacent the said holsters, said means co1n prising angle bars eachconnected to the inner face ot' one of the said plates adjacentthebolster and extending forwardly thereof, and an angle bar connected tothe outer tace of each plate adjacent the depending portion thereof, theadjacent ends of each pair o1 angle bars being adapted to extend in thesame direction and to overlap.

3. In a car underframe the combination with the center sills, end silland bolster, of a pair of metallic draft plates connected to the uprightfaces of the said sills and eX- tending under the end sill and over andto the rear of the said bolster, means for reinforcing said platesbetween the end sill and bolster and means for reinforcing said platesadjacent the said bolster, said rst named means including a pair ofangle bars connected to the outer face of each of the 'A said plates andextending rearwardly from the end sill toward the said bolster one anglebar'of each pair being connected to the adjacent center sill, said lastnamed means including a member connected to the inner face of each plateadjacent the said bolster, said members being adapted to coincide withthe lower edge oi' the adjacent plate, the said members extendingforwardly of the bolster and e'ach being adapted to overlap and beconnected to the adj acent end of one of the first named angle bars,said overlapping ends extending in the same direction.

ln testimony whereof I aiix my signature.

DONALD S. BARROWS.

